CUET Preparation Today
If red light is replaced by blue light in single slit diffraction then |
there is no change in diffraction pattern diffraction bands become narrower diffraction bands become broader diffraction band disappear |
diffraction bands become narrower |
The correct answer is Option (2) → diffraction bands become narrower The position of diffraction minima (or dark fringes) is given by the condition - $a\sin θ=nλ$ $∴λ↓∝θ↓$ [θ → Angle of Diffraction] Hence, it results in smaller values of θ, so the fringe become close together. |
